Chevrolet Silverado I - Fuse box

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Instrument Panel Fuse Block

1 year ago by
t0z

The fuse block access door
is on the driver’s side edge
of the instrument panel. Pull
off the cover to access the
fuse block. You can remove fuses with a fuse extractor which is
mounted to the fuse block access door.

To remove fuses
if you don’t have a fuse extractor, hold the end of the
fuse between your thumb and index finger and pull
straight out. You may have spare fuses located behind the fuse block
access door. These can be used to replace a bad fuse.
However, make sure it is of the correct amperage.

NAMEUsage

L BODY

Retained Accessory Power Relay

LOCK Power

Door Locks

DRV UNLOCK

Power Door Lock Relay

LOCK

Power Door Lock Relay

HVAC 1

Climate Control System

CRUISE

Cruise Control, Instrument Cluster

IGN 3

Ignition, Power Seats

4WD

Four-Wheel Drive System, Auxiliary Battery

CRANK

Starting System

INT PRK

Parking Lamps, Sidemarker Lamps, Interior Lamps

L DOOR

Power Door Lock Relay

BRAKE

Anti-Lock Brake System

RR WIPER

Not Used

ILLUM

Interior Lamps

SEAT

Power Seat Circuit Breaker

TURN

Exterior Lamps, Turn Signals, Hazard Lamps

UNLOCK

Power Door Locks

HTR A/C

Climate Control System

WS WPR

Windshield Wipers

IGN 1

Ignition, Instrument Panel

AIR BAG

Air Bag

MIR/LOCK

Power Mirrors, Power Door Locks

DR LOCK

Power Door Locks

PWR WDO

Power Window Circuit Breaker

UNLOCK

Power Door Lock Relay

IGN 0

PRND321 Display, Odometer, VCM/PCM

SEO IGN

Special Equipment Option, Ignition, Manual Selectable Ride

SEO ACCY

Special Equipment Option Accessory, Cellular Telephone

RAP #1

Retained Accessory Power Relay

RDO 1

Audio System

RAP #2

Not Used

Center Instrument Panel Utility Block

1 year ago by
t0z

The center instrument panel utility block is located
underneath the instrument panel, to the left of the
steering column.

Relay NameUsage

SEO

Special Equipment Option

HTD ST

Heated Seats

SPARE 4

Not Used

VANITY

Headliner Wiring

TRAILER

Trailer Brake Wiring

PWR ST

Power Seats

SPARE 5

Not Used

CLUTCH

Manual Transmission Clutch Switch

UPF

Upfitter

PARK LAMP

Parking Lamps

FRT PRK EXPT

Not Used

SL RIDE

Manual Selectable Ride Switch

SPARE 2

Not Used

RR PRK LP

Not Used

RR FOG LP

Not Used

SPARE 3

Not Used

INAV PWR

Interior Lights Feed

CTSY LP

Courtesy Lamps

CEL PHONE

Cellular Telephone Wiring

Underhood Electrical Center

1 year ago by
t0z

The underhood electrical center is located on the
driver’s side of the engine compartment near the battery.
Lift the cover for access to the fuse/relay block.
You can remove fuses with a fuse extractor. The fuse
extractor is located in the underhood electrical center. To
remove fuses if you don’t have a fuse extractor, hold the
end of the fuse between your thumb and index finger
and pull straight out.

NameUsage

STUD #1

Accessory Power/Trailer Wiring Feed

ABS

Anti-Lock Brakes

IGN

A Ignition Switch

AIR

A.I.R. System

RAP #1

Retained Accessory Power, Power Mirrors, Power Door Locks, Power Seat(s)